Chemistry The percentage of Nitrogen in Air is 78.03 85.02 0.94 0.03 78.03 85.02 0.94 0.03 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 CuCO3 Cu(OH)2 CuSO4 CuO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbons Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the human body is Iron Nitrogen Carbon Oxygen Iron Nitrogen Carbon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of carbon monoxide is Industrial process Fuel combustion Transportation Solid waste disposal Industrial process Fuel combustion Transportation Solid waste disposal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal does not give H2 on treatment with dilute HCL is Ag Zn Ca Fe Ag Zn Ca Fe ANSWER DOWNLOAD EXAMIANS APP
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